Friction draft-rigging for railway-cars.



PATENTED APR. 9, 1907.

J. F. oGoNNoR. FRIGTION DRAFT RIGGING PGR RAILWAY GARS.

APPLICATION FILED DBC. 19. 1906,

2 SHEETS-SHEET l.

m L---Y v. m WM. W m m. Ww.. J m s., m\ 11% R E Y T A M w. m ff 1 @wmmmm. W www M f /m www i Mffm Fim 1 f f\ mm y w W a my P A L a m, a 5 l My. v. Z

UNITED STATES IAIIINT OFFICE.

Joi'iN FfoooNNoa, or

Cl-IICAGO, ILLINOIS, ASSIGNOR TO W. I-I. MINER COMPANY, OF CHICAGO,ILLINOIS, A CORPORATION'OF ILLINOIS.

Specification 4of Letters Patent.

Patented April 9, 190'?.

Applicatie filed December 19,1906. Serial No. 348,549.

1'() a/Z/ whrmb llt muy colmar/L:

Be it known that I, JoiiN l?. OCoNNoii, 'a' citizen of tle UnitedStates, residing in (,hi-

cago, in the county of Cook and Stai e of Illii nois, have invented anew and useful Iniprovemeiit ltailway-Cars, oi which. the following is aspecification. v

My invention relates to fric-tion draft-rigging for railway-cars.

In tine practical use of friction draftgear dii'licully or objectionllas been experienced "owing to the tendency of tl..e spreader orloarl-distributing niecimnisin to slick or to be.

uncertain or irregular in action and violent in `movement when motionbegins, thus greatly reducing the eil'ective cushioning ei'- .fect orabsorption of work by the frictionsurfaces.

The object of niy invention is to provide a for overcoming this ob3ecipractical means.

. tion or di'li'iculty and for enabling the friction devices touniformly and reliably exert or produce a positive predeterminedresistance or cusl"oiiing cll'ect, while at tliesaiiie time making thedraft-rigging of a simple, strong, ellcient, and durable construction. n

My invention .consists in the means I ein ploy to practicallyaccomplish. tl object or result-that to say, it consists, in coiiiiecltion with the draw-bar and its yoke and lthe co peratin g stationarystops on the car iranieor sills, of a direct-iwt-ing spring arranged longitudinally ofthe drawfbar, a longitudinallyiiiovable Jfriction shell orcase, and a pair of coperating irictioii-bloels having frictionfaces insliding' frictional engagement with the friction-.shell and one bearingagainstI the spring and the other against the draw-bar,

and an intermediate friction-block having .a` friction-face in slidinffi'rictional engagement with the friction-snel and inclined Wedgingspreader-faces cooperating with inclined or Wedging spreader-faces 4onsaid first-inentione'd friction-blocks, and antifrictioinrollersinterposed between the adjacent or meeting spreader-faces of thefriction-blocks t'o i I prevent the friction-blocks from sticking and tocause the same to properly and uniformly act.

.My invention also consists'. in''ftlie novel` construction of parts anddevices and inl the novel combinations of parts and devices herein shownand describe iii lirictioii Dral't- Rigging for' .p my invention.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation, partly in vertical longitudinal section,oi a friction draft-rigging embodying in horizontal section. 'F ig. 3 isa cross-sec tion on line 3 3 of Fig, 1.. Fig. 4 is a detail perspectiveView of 'one of ythe terminal fric- Fig. 2 is a plan view, partlyton-blocks- Fig. 5 is a detail perspective view of the intermediatefriction-block, and Fig. 6 is allongitudinal sectional view illus#t-iating a moditication AIn the drawings, A represents .the .iranie-vpieces of Tse car to which the drei` 1. rigging is applied, the sainebeing, as illustrated in the drawings, metal center sills. B is thedraw-bar; B', its yoke; Oc, lon gitudiiiallyairranged direot-actingdraft-rig ging springs, and D D the stationary stopsI 'of thedraft-rigging, .which are secured to the center sills or car-framework,preferably by rivets d.

ll F are the front an d rear followers, adapt-- ed to alternately engagethe stops D D and' l D D and cooperate with the draw-bar 'and its yokeand the draft-rigging spring.

It is a longitudinally-movable friction shell or case, preferably madeintegral with the rear follower and .having inside parallelfriction-faces f and exterior strengtleningribs jsurrounding tliel'riction-lilock-iiiclosing portion of the shell. The friction shell or.case F2 is cutaway at its top and bottoni walls adjacent to the spring,and thus fun nishcd with openings f-, through one of which the spring Cmay be inserted or re-. moved. The shell F.2- isl provided on each sideat its bottom with a laterally-projecting guide or ilange {`3 to engagethe removable bottoni or tie p ate I-I, which is secured by bolts 4li to.the center sills or other stationary frame-pieces to which thedraft-rigging is ap- "puta G G are a pair of terminal friction-blockshaving friction-faces g g in sliding frictioiial engagement vwith andparallel to tlie cooperating 'Friction-face f of the friction-shell F2and having inclined or wedging spreader` faces g* and square end facesg2 for engage- I'nent with the front follower and the front 4end of thespring O, respectively` G is the ntermediaterictioii-blook, the sainehaving a friction-face g3,.parallel to. and in sliding frictionalengagement with the lower frictiontion with the draw-har and its yolie,of a 'rocking (ir-tilting movement of ihe inter-` facef of thefriction-shell F. This inter1ne l rolling action upon both blocks withwhich it diate friction-block G is also provided with in contactsubstantially as speciiied. two inclined or'wedging spreader-facee g g,2. ln a friction draft-rigging, the combinacoperating with he inclinedor Wedging tion with the draw-har and its `yoke, of :i spreader-faoes gof the terminal frietioni direct-acting spring, followers, Stops for theblocks G G. followers, a longitndinally-movahle friction- K K areantifriction devices, preferal'ily i shell, a pair of terminal .slidingfrietionrollers, interposed between the inclined or i' liloels havinginelined or edging Spreaderspleader faces on the intermediatefrictionfaces an l' an intermediate sliding frictionblock G', and theterminal friction-blocks GIG -v block having two inclined Yor wedgingare each furnished with cooperating saddles E spreader-faces andantifrietion-roller interor shoulders for maintaining the rollen` jposed between the terminal friction-blocks Kin position. andintern'lediate frietion-hloek. said termi- In. the modificationillnst'ratedin Fig. 6 nal lrietion-hloeke and lmid intermediate theintermediate friction-block (l2 has its inf lrictii'in-hloek havimgreopera:ingl saddles or clined or Wedgingspreader-faces parallel to:shoulders to keep the antifrietion devices in each other instead of atan angle to each i plnee,eaehrollerhavinga rollingaetionnpon other, andthe cooperating terminal frictionf hoth hloeks with which it is'ineontaetsuhblocks tend to impart a slight tiltingvniovt l stantiall)Y isspecified. ment' to the intermediate friction-block, and I3, In afriction draft-rigging, the eornhinathus force both of'its Slidingfriction-faces fion with the draw-har and :i direct-acting' .intofrictional engagement-with the eoperspring in line with the draw-har anda fricatinir friction-face of the friction-shell F. tion-shell, 'of apair of terminal friction In -t iis. modified construction owing tothisblocks and an intermediate frietionhlock Slight tilting nipyement ofthe intermediate a 1d :intifrietion-rollera interposed betweenfriction-'block the 'Wear upon the frietionsaid interniedwie bloei; andsaid terminal faces of the intermediate friction-Mock tends lfriction-Moeke. eaeh roller having a rolling; to throw them SlightlyYont of parallelism. aetion upon hoi'h liloeks with whieh it is in witheach other, although this :ie-tion is not l eontaetsnhstuitizillyas'speeified. objectionable, as the spreader inoven'ientof 4. ln n friction draft-rigging, the. eonihinae the friction-blocks isvery slight and as the -ti'on with the dra\\'-l mr and a direct-actingspring in line with the draw-har and a frio tion-shell of a pair ofterminal frictionlnediate block is consequently also very slight.:ihloel-s and an intermediate friction-block .l claim` ,andantifrictiomrollere interposed between In a friction draft-rigging;theoolnhinasaid intermwliat-e liloek and said terminalfrietion-hloeli's, said intermediate.and terminal frietiondiloeiiehaving' eoi'perating Shoulders to engage the rollers, each rollerhavingra rolling netion npon hoth lblocks with which it is in eontactsubstantially specified.

dlrect-acting spring, followers, stops for the followers, alongitudinally-iinovahle. friction'- Shell, a pair of terminalelidingfriction-Moeke lia-ving* inclined or wedging spi'eadewfaeeo and anintermediate. sldig friction-Mocky' having two nic-lined or w (Iginospreaderfaces 'and antifrietioneroller interl'iosed he. l-Vitnesses:

tween the. terminal friction--hloeks and interll. M. MUNDAY, mediatefrictim-block,l eac-h roller having a i IGDMUND ADoooK.

